Preparation, spectrographic characterization, thermal, second and third order nonlinear optical properties of 4,5-bis(foroylsulfanyl)-1,3-dithiole-2-thione
被引:4
作者:
Wang, X. Q.
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Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Wang, X. Q.
[1
,4
]
Fang, H. L.
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机构:
Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Fang, H. L.
[1
,4
]
Ren, Q.
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机构:
Shandong Univ, Dept Opt, Jinan 250100, Peoples R ChinaShandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Ren, Q.
[2
]
Sun, J.
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Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Sun, J.
[1
,4
]
Li, T. B.
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Taishan Univ, Dept Mat Sci & Technol, Tai An 271021, Shandong, Peoples R ChinaShandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Li, T. B.
[3
]
Zhang, G. H.
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机构:
Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Zhang, G. H.
[1
,4
]
Xu, D.
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Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R ChinaShandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
Xu, D.
[1
,4
]
机构:
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Shandong Univ, Dept Opt, Jinan 250100, Peoples R China
[3] Taishan Univ, Dept Mat Sci & Technol, Tai An 271021, Shandong, Peoples R China
[4] Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China
A novel nonlinear optical organic crystal, 4,5-bis(foroylsulfanyl)-1,3-dithiole-2-thione (BFDT), was prepared and characterized by elemental analyses, infrared and Raman and X-ray powder diffraction spectroscopy, thermal analysis, specific heat, optical transmission and second harmonic generation determinations. It exhibits powder second harmonic efficiencies about 1.3 times that of urea. The transparent region is from 442 to 3200 nm. The BFDT doped PMMA composite films were fabricated by means of spin-coating. The third order nonlinear optical properties of the films were investigated by using the Z-scan technique at 532 nm with 20 ps. They exhibited very large self-defocusing effects and negligible nonlinear absorption.